UsableWidth Property

Microsoft Excel Visual Basic

Returns the maximum width of the space that a window can occupy in the application window area, in points. Read-only Double.

Example

This example expands the active window to the maximum size available (assuming that the window isn't already maximized).

With ActiveWindow
    .WindowState = xlNormal
    .Top = 1
    .Left = 1
    .Height = Application.UsableHeight
    .Width = Application.UsableWidth
End With